Since then, she has got through 6,272 bottles of milk and more than 4,700 nappies. But her biggest joy was getting that big sleep before George, Grace and twins Frederica and Francesca were christened at her local church in Southgate, North London. Tracey joked: “A good kip isn’t easy when they’re all teething.

“Then when one gets ill they all get ill but I’m getting there. People said I was mad when they found out I was going to have a baby at 51 and they did a double take when it was quads.